Utah engineers develop process for electronic devices that stops wasteful power leakage
According to the National Resource Defense Council, Americans waste up to $19 billion annually in electricity costs due to “vampire appliances,” always-on digital devices in the home that suck power even when they are turned off. (more…)
Engineers work to create new biomaterials with energy technology applications
When automotive engineers want to create a new car, they don’t build thousands of prototypes. Instead, they create computer models and run simulations for performance, efficiency and desirability before a model is selected for fabrication.
University of Delaware materials science professors Darrin Pochan and Kristi Kiick are taking a similar approach to building new nanomaterials from biomolecules — namely peptides and proteins — that could increase the efficiency of photovoltaics, also known as solar cells, and other electronic devices. (more…)
Berkeley Lab researchers recreate elusive phenomenon with artificial nuclei
The first experimental observation of a quantum mechanical phenomenon that was predicted nearly 70 years ago holds important implications for the future of graphene-based electronic devices. Working with microscopic artificial atomic nuclei fabricated on graphene, a collaboration of researchers led by scientists with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley have imaged the “atomic collapse” states theorized to occur around super-large atomic nuclei.
“Atomic collapse is one of the holy grails of graphene research, as well as a holy grail of atomic and nuclear physics,” says Michael Crommie, a physicist who holds joint appointments with Berkeley Lab’s Materials Sciences Division and UC Berkeley’s Physics Department. “While this work represents a very nice confirmation of basic relativistic quantum mechanics predictions made many decades ago, it is also highly relevant for future nanoscale devices where electrical charge is concentrated into very small areas.” (more…)
While the demand for ever-smaller electronic devices has spurred the miniaturization of a variety of technologies, one area has lagged behind in this downsizing revolution: energy-storage units, such as batteries and capacitors.
Now, Richard Kaner, a member of the California NanoSystems Institute at UCLA and a professor of chemistry and biochemistry, and Maher El-Kady, a graduate student in Kaner’s laboratory, may have changed the game. (more…)
Want to stop cyberbullying on Facebook? Try using … Facebook.
A recently published study by a team of Michigan State University researchers found that one effective way of fighting cyberbullying is by using the medium where it tends to flourish. The key, said the researchers: Make your anti-cyberbullying messages positive in nature. (more…)
Engineers at Yale University have developed a new breed of micro fuel cell that could serve as a long-lasting, low-cost, and eco-friendly power source for portable electronic devices, such as tablet computers, smart phones, and remote sensors. The researchers describe the novel device in a paper published online in the journal Small. (more…)
Using the world’s fastest laser pulses, which can freeze the ultrafast motion of electrons and atoms, UA physicists have caught the action of molecules breaking apart and electrons getting knocked out of atoms. Their research helps us better understand molecular processes and ultimately be able to control them in many possible applications.
In 1878, a now iconic series of photographs instantly solved a long-standing mystery: Does a galloping horse touch the ground at all times? (It doesn’t.) The images of Eadweard Muybridge taken alongside a racetrack marked the beginning of high-speed photography.
Approximately 134 years later, researchers in the University of Arizona department of physics have solved a similar mystery, one in which super-excited oxygen molecules have replaced the horse, and ultrafast, high-energy laser flashes have replaced Muybridge’s photo emulsion plates. (more…)
Electroluminescence has come a long way since its discovery at the start of the 20thcentury. For many years the scientists who pioneered its development struggled to come up with practical applications for electroluminescent technology – early uses of the discovery lacked the lifespan to work as practical lamps and light sources, whilst its unreliability made it difficult to use in displays and interfaces.
Undeterred by their setbacks, the boffins working on electroluminescence didn’t give up, and thank goodness, because today electroluminescent light has evolved into a technology that has myriad applications all over the planet. (more…)
